document.write( "Question 688891: How much of an alloy that is 10% copper should be mixed with 600 ounces of an alloy that is 90% copper in order to get an alloy that is 40% copper? \n" ); document.write( "
Algebra.Com's Answer #425751 by solver91311(24713)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "600 ounces of 90% copper is 540 ounces of pure copper. ounces of 10% copper is ounces of pure copper. ounces of 40% copper is ounces of pure copper, so:\r
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\n" ); document.write( "Egw to Beta kai to Sigma
\n" ); document.write( "My calculator said it, I believe it, that settles it
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